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Intel CPU/Kernel Problem and BOINC
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Author | Message |
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Send message Joined: 3 Jan 18 Posts: 1 |
What are the ramifications of the new patch that Linux and Windows are putting out to address the kernel memory leak on Intel CPU's? Will my BOINC performance vary based on which project's tasks are running? Are some tasks more kernel intensive than others? |
Send message Joined: 29 Aug 05 Posts: 15478 |
From https://newsroom.intel.com/news-releases/industry-testing-shows-recently-released-security-updates-not-impacting-performance-real-world-deployments/ As Intel and others across the industry partner to protect customers from the exploits (referred to as “Spectre” and “Meltdown”) reported Wednesday, extensive testing has been conducted to assess any impact to system performance from the recently released security updates. Apple, Amazon, Google and Microsoft are among those reporting that they are seeing little to no performance impact. |
Send message Joined: 15 Jan 18 Posts: 5 |
Just out of interest, I benchmarked my laptop before and after the OS+BIOS patch for meltdown. Before: 04/01/2018 16:52:28 | | Running CPU benchmarks 04/01/2018 16:52:59 | | Benchmark results: 04/01/2018 16:52:59 | | Number of CPUs: 4 04/01/2018 16:52:59 | | 3589 floating point MIPS (Whetstone) per CPU 04/01/2018 16:52:59 | | 11323 integer MIPS (Dhrystone) per CPU After: 15/01/2018 15:31:35 | | Running CPU benchmarks 15/01/2018 15:32:06 | | Benchmark results: 15/01/2018 15:32:06 | | Number of CPUs: 4 15/01/2018 15:32:06 | | 3433 floating point MIPS (Whetstone) per CPU 15/01/2018 15:32:06 | | 8509 integer MIPS (Dhrystone) per CPU Floating point appear to be down around 4%, but integer is down around 25%. I would guess floating point has more of an impact on BOINC than integer? |
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